Silverlight Menu4U

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Windows.Markup;
using System.Collections.Specialized;

namespace Silverlight.Controls
{
    [ContentProperty("Children")]
    public class MenuItem : ObservableCollection<MenuItem>, INotifyPropertyChanged
    {
        #region private
        bool isEnabled = true;
        bool isCheckable = false;
        bool isChecked = false;
        string text = "";
        ObservableCollection<MenuItem> children = new ObservableCollection<MenuItem>();
        PropertyChangedEventHandler handler;
        #endregion

        #region public
        public event PropertyChangedEventHandler PropertyChanged;
        public String Description { get; set; }
        public String IconUrl { get; set; }
        public String ShortCut { get; set; }
        public ObservableCollection<MenuItem> Children
        {
            get
            {
                return children;
            }
            set
            {
                children = new ObservableCollection<MenuItem>();
                foreach (MenuItem item in value)
                {
                    children.Add(item);
                    Items.Add(item);
                }
                NotifyPropertyChanged("Children");
            }
        }

        public MenuItem Self
        {
            get {return this;}
        }

        public ICommand Command { get; set; }
        public string ImageSource { get; set; }
        public bool IsSeparator { get; private set; }

        public string Text
        {
            get { return this.text; }

            set
            {
                if (value != this.text)
                {
                    this.text = value;

                    if (value.Equals("-"))
                        IsSeparator = true;

                    NotifyPropertyChanged("Text");
                }
            }
        }

        public bool IsEnabled
        {
            get { return this.isEnabled; }

            set
            {
                if (value != this.isEnabled)
                {
                    this.isEnabled = value;
                    NotifyPropertyChanged("IsEnabled");
                }
            }
        }

        public bool IsChecked
        {
            get { return this.isChecked; }

            set
            {
                if (value != this.isChecked)
                {
                    this.isChecked = value;
                    NotifyPropertyChanged("IsChecked");
                }
            }
        }

        public bool IsCheckable
        {
            get { return this.isCheckable; }

            set
            {
                if (value != this.isCheckable)
                {
                    this.isCheckable = value;
                    NotifyPropertyChanged("IsCheckable");
                }
            }
        }

        private void NotifyPropertyChanged(String propertyName)
        {
            handler = PropertyChanged;
            if (handler != null)
            {
                handler(this, new PropertyChangedEventArgs(propertyName));
            }
        }
        #endregion

        #region Ctor
        public MenuItem()
        {
            this.isEnabled = true;
        }

        public MenuItem(string item)
        {
            Text = item;
            Children = new ObservableCollection<MenuItem>();
            IsCheckable = 
            IsChecked = false;
        }

        public MenuItem(string item, string iconUrl)
        {
            Text = item;
            IconUrl = iconUrl;
            Children = new ObservableCollection<MenuItem>();
            IsCheckable =
            IsChecked = false;
        }

        public MenuItem(string item, string iconUrl, ICommand command)
        {
            Text = item;
            IconUrl = iconUrl;
            Children = new ObservableCollection<MenuItem>();
            Command = command;
            IsCheckable =
            IsChecked = false;
        }

        public MenuItem(string item, ICommand command)
        {
            Text = item;
            Children = new ObservableCollection<MenuItem>();
            Command = command;
            IsCheckable =
            IsChecked = false;
        }

        #endregion

        #region methods

        public override string ToString()
        {
            return Text;
        }

        #endregion methods
    }
}